Nice. I assume an A4 is the automatic four-speed. Also assume the cam is relatively mild cam as those numbers look low for a 427 C5R out of MTI.1 BAD BURB said:
its a 98' Pewter Vert with a 6pt rollcage...did u see it???case2307 said:The reason I asked if the car was there or not is because I'm down there all the time...just wondering if I've seen it before. What color is it? I agree that the A4 will hurt you on the dyno...but, it's the track numbers that really count. :cheers:
Something doesen't seem right. An automatic transmission takes away about 20% of flywheel HP and 6 a speed takes away about 15%. So IMO you should be at 485 rwhp to 515 rwhp. Maybe it's in your tune.1 BAD BURB said:unfortunately..i already have those....
don't know what else i can do...unless i do a swap to a M6 instead of A4....
Gross frictional loss in a 2003 Z06 is 15-16% between crank and rearwheels according to Chuck Mallett. I use 16% for calculation purposes. A 427 should be 500 rwhp easily if its tuned correctly, has a reasonable cam in it, and is running on pump gas, i.e., <=11.2:1.00 compression.IT L GO said:Something doesen't seem right. An automatic transmission takes away about 20% of flywheel HP and 6 speed take away about 15%. So IMO you should be at 485 rwhp to 515 rwhp. Maybe it's in your tune.
The swap to a 6 speed will give you more Dyno HP, but think about all the problems will have with trying to get a good clutch etc. When all is said and done your car wouldn't be much faster unless you are really good with a stick. The reason I like a 6 speed is because it's more fun than Auto. :z: